Locking device for vehicle wheels



May 1942- A. vrMANDEKlC 2,284,220

LOCKINGDEVICE FOR VEHICLE WHEELS Filed Oct. 51, 1941 27 25 )4 as 37 35 2 .98 A

// /s l a Q1 7 If 43 INVENTOR ATTORNEY Patented May 26, 1942 LOCKING DEVICE Foa VEHICLE WHEELS Anthony V Mandekic, Los Angeleafialif. Application carom-.31, 1941,: Serial rim-417,367

: V This invention relates to a locking device for vehicle Wheels.

The invention may be used to lock against rotation the wheels of various kind of vehicles, but

- is more particularly intended for being used upon the wheels of hand operated trucks.

Among the objects of the invention are to provide an exceedingly simple meansfor positively locking truck wheels against rotationyto provide in combination with other'features of the invention, improved means for keeping the locking element in or out of its locked position; and to provide for hand operable trucks a wheel locking means which the user can adjust manually with minimum interference in regard to the use of his hands to propel the truck.

Other objects, advantages and features of invention. will hereinafter appear.

Referring to'the accompanying drawing, which illustrates what is at present deemed to be a preferred embodiment of the invention,

Fig. 1 is a side elevation of a hand operable truck, equipped with the invention, parts being broken out to contract the view. This view is partly sectioned on line I-l of Fig. 2.

Fig. 2 is a front elevation of Fig. 1. I

Fig. 3 is a reproduction on an enlarged scale of a fragment of the right hand portion of Fig. 1, in order to illustrate more clearly the means for releasably mounting the locking rod in the wheel locking position.

Fig. 4 is an elevation looking at the right hand end of Fig. 3. A portion of the wheel being locked is shown in section, the locked position of the device being indicated in dotted lines.

Referring in detail to the'drawing, the hand truck shown comprises a frame having a platform portion [0, rear wheels Il, rear supporting ing bar.

rods l2, front wheels [3 and front supporting V rods M. The axle [5 of the front wheels supports a conventional fifth .wheel' structure with a non-rotatable upper plate l6 and a turnable lower plate I1.

Underlying the platform or truck bed 10 are transversely extending front crosspieces 2| and 22, and rear cross-pieces 23 and 3|. Through said cross pieces the wheel lockingrod 25 extends with a working fit, said rod carrying a right angularly deflected rear, end portion 21 furnished with an extremity 28 which is right angularly deflected in relation to the portion 21 in the proper direction for being projected between adjacent spokes Ila of the rear wheel H with which it is associated. The rod portion 21 is shown as a separate forged part having at its bearing in a frame member 3|. 7

site end said rod has fixed to it a stop collar -32.

7Claims. (01'. 188%31) inner end asleeve portion 29 which is keyed to the rear endpart of the straight portion of the rod 25. Said rod projects at 30 and hasits Near its .oppo

At its front end the locking rod 25 has a handle portion 35 which extends from the bar along a radius which is at less than a right angle to that of the main part of thelocking arm 21. A handle rest rod 36 is mounted upon the front portion of the vehicle frame to slide longitudinally thereof, said rod 36 being furnished at its front endwith a defiected handle 31 whereby it is manually slidable to and from the position wherein it may be utilized to support in a horizontal position the handle 35 of the wheel lock- The rod 36 has a deflected rear end portion 38, the two deflected portions of the'rod cooperating with the vehicle frame to limit the sliding movement of therod.

The truck shown has the usual tongue or traction bar 41, the lower extremity of which carries a counterbalancing weight-42, said bar being pivoted to the lower frame piece 43 to swing vertically. j

Owing to the fact that the slidable handle rest member 36 is located at the front end of the truck bed or platform II] the user of the truck can convenientlyand quickly push said member rearwardly to release the bar 25, which will then immediately automatically turn to the wheel locking position. When the locking bar 25 is turned to the wheel locking position its handle portion 35 extends in a downwardly inclination so that its weight aids in maintaining the locking bar in its locked position. If desired, said handle portion may be weighted to make the locking action more positive.

'I claim: 1 1

1. 'Ihecombination, with the, frame and ground wheels of a vehicle; of a bar turnably mounted upon said frame, said bar having one of its end portions deflected and positionable by the turning of the bar into a locking position between adjacent spokes of a wheel of the vehicle, the opposite end portion of said bar being laterally .deflected thereby forming a handle means for turning the bar.

tremity positionable by the turning of the bar into the space between adjacent spokes of the wheel of a vehicle, said bar having also a handle porground wheels tion which extendsat a downward inclination when the bar is in the wheel locking position, to

aid in maintaining the bar in locking position.

3. The combination with the ground wheels and frame of a vehicle; of a bar turnably mounted upon said frame,'said barhaving a radially extending portion having a deflected extremity positionable by the'turning of the bar into the space between adjacent spokes of the wheel of a vehicle, said bar having also a handle at a downward inclination when the bar is in the a wheel locking position, to aid in maintaining the bar in looking position, and a movable handle rest member carried by said frame, said member being adjustable toand from a position wherein turning of the bar into 7 a sleeve part to fit over the body portion of the f .rod and carrying means to fix said sleeve part to the rod inthe selected rotational position. said it supports said handle portion ahorizontally extending position.

4. The subject matter of claim 3 and; said handle rest member consisting of a rod mounted upon the frame of the vehicle to slide toand from a position wherein it underlies said'handle member .when the latter extends horizontally.

.5; The .combinatio'n, with the frame. and

Y ground wheels of a vehicle; of a barturnably' mounted upon said frame, said bar having a laterally extending portion positionableiby the rod having a' handle portion for use in rotating itfito and fromithe wheel braking position.

7. The combination, with theframe and ground ".wheels of avehicle; of a barturnable about its axis, and bearings whereby said bar is supported upon said frame, said bar having a laterally extendinglocking portion positionable by the axial turning of the bar into the space 'between adjacent spokes of a wheel of the ,vehiclaand means to maintain thebar in itsilocked .co'nditi'om. 

